Typewriter attachment



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H. C. STEVENS TYPEWRITER ATTACHMENT Filed April 6, 1921 4 Sheets-Sheet12 a g T *1:

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H. C. STEVENS TYPEWRITER ATTACHMENT Filed April 1921 4 Sheets-Sheet 4.bzvenfo A2915? C 5751 5/15 6" q 4 Wineases:

Patented July 3, 1923.

UNITED STATES HAYES C. STEVENS, OF PITTSBURGH, PENNSYLVANIA.

'rrmswnrrnn ATTACHMENT.

Application filed April 6, 1921.

Toallw/wmitma concem:

Be it known t at I, Hares C. S'rsvmvs, a citizen of-the United States,and resident of Pittsburgh, in the county of All gheny and State ofPennsylvania, have invented certain new and useful Improvements inTypewriter Attachments, of which the following is a specification.

This invention relates to typewriter attachments, and more particularlyto typewriter attachments wherein provision is made for feeding acontinuous strip or strips of paper from a roll or rolls direct. to thetypewritin machine.

While not imited thereto, this attachment is especially adapted forwriting tele Serial No. 458,898.

in the upper edge of the head portions 4.

Two other tie rods 11 and 12 extend transversely between the arms? and 6respectively, and are mounted in slots 13 adgrams and hasfor one of itsobjects the? the f s d of d armsn h r provision of a mechanism whichwill enable the operator to write the original and carbon copy oncontinuous sheets without having to stop to change sheets, or to insertcarbons, all as will more fully appear hereinafter.

Another object is to provide means whereby the sheets or telegrams maybe severed from the rolls when desired.

A further object is to provide an attachment of thecharacter describedwhich shall be of simple construction, durable, and comparativelyinexpensive. which may be readily attached to typewriting machines ingeneral use.

In the drawings:

Figure 1 is a front elevation of an apparatus constructed in accordancewith this invention.

Figure 2 is a side elevation of the device ofFigure 1.

Figure 3 is a dtaibend elevation of the reel member upon which thecarbon copy is adapted to be wound.

mugs 4 is a front elevation of a slightly modifiedform of attatllment.

Figure 5 is a side elevation of the attachment shown in Figure 4.

Figure 6 is apartial top plan of the rerolling device and guides ,of themodified form.

Referring particularly to the drawings, the supporting frame is composedof two duplicate side members A and B each of which comprises a shankportion 2, a base portion 3, a head portion 4 of greater width than theshank portion. and a pair of vertically spaced rearwardly and downwardlydirected arms 5 and 6.

tie rod 14 extends transversely between the side members A and B and ismounted in slots 15 formed in the shank portion 2 between the arms 5 and6.

Each of the several tie rods is provided with a circumferential groove16 so as to fit within their respective slots in the side members A andB and also forming shoulders adapted to abut each side face of the sidemembers, thus holding them against sidewise movement relative to therods.

A reel member C ex-tends transversely between the head portions 4 of theside members A and B, and comprises a central roller or shaft member 18adapted to be detachably secured to stub shafts 19 and 20 journaled inbearings 21 and 22 secured to the side members A and B. respectively.The shafts 19 and 20 are slidably mounted in the bearings 21 and 22 andare held in engaged position witn .the roller or shaft member 18 bysprings 23 and 24. respectively.

A plurality of radially extending spring fingers 25 are mounted aroundthe outer periphery of the member 18 adjacent each end and are adaptedto engage and hold a cylindrical core 26, of paper or the like, on whicha carbon copy is adapted to be wrapped. The shaft 19 is provided with asprocket member 19' on its outer end adapted to be connected by asuitable sprocket chain with a sprocket 19 on the shaft of the platenmember 33 of a type writer so that the reel C is driven as the platen 33is rotated.

A knife member D is pivotally mounted on the side members A and Badjacent their lower end and comprises a U-shaped mem her having itsclosed side 27 forming a blade and its arms 28 and 29 are each providedwith a slot. 30 and are each pivotally mounted on a bolt 31 extendingthrough the slot 30 and through a vertically extendin slot 32 in theside members A and B. t will thus be seen that the knife member D may beadjusted toward or away from the side members A and B, and is alsoangularly and vertically adjustable relative to said side members.

In the drawings I have shown the platen 33 of a typewriter incombination with my apparatus, for purpose of illustration.

In operation, a roll of paper or telegram blanks 35, for originalcopies, is mounted on the tie rod l2 and has its loose end trained upand over the paper guide 7 of the typewriter, then down under the platen33 and up under the closed side or blade 27 of knife member D. A secondroll of paper or telegram blanks 36 for carbon copies is mounted (mi thetie rod 14 and has its loose end trained down between the end of thepaper or blanks from the roll 35 and the platen 33 thence up around theplaten and up to the reel C to which it is secured.

A continuous carbon sheet 37 is interposed between the sheets 35 and 36of blanks and extends up and over the tie rods 8 and 9 and under rod 11and is adapted to be rotated as the paper or blanks are advanced.

When the operator turns the platen to advance the paper for a new lineof writing the chain and sprocket connection with the reel C will driveto wind up the carbon copy, and when the writing is complete theoperator will tear off the original or first sheet by engaging it withthe blade 27 of knife member D.

In Figures 4 to 6 I have shown a modified form of my invention, the samereference numerals being used to designate the parts that are commonwith the preferred construction. The side members A. and B are composedof a shank 40, a rearwardly somewhat extended arm 41, and a base 40secured by bolts 7 to the paper guide 7. A

tie rod 42 extends transversely between the shank portions of themembers A and B and is secured in slots 43. A second tie rod 44 extendsbetween projections 45 formed on the lower edge of the arms 41 and issecured in slots 46. The knife D is mounted adjacent the lower end ofthe members A and B as in the preferred form.

The reel C extends transversely between the members A and B and isdetachably secured to the stub shafts I9 and 20, however,

the shaft 20 is not slidably mounted in the bearing 22 as in thepreferred form.

A spring retraction roller 48 is mounted in suitable bearings adjacentthe rear end of the arms 41. The roller {8 may be of any desiredconstruction but is preferabl in the form of the well known window shaderoller and is adapted to have a carbon sheet 49 secured thert-to.

The roll of paper or telegram blanks 35 for original copies is mountedon the tie rod 44 and has its free end trained up and over the paperguide 7 of the typewriter, thence down under the platen 33 and up underthe closed side or blade 27 of the knife member D. A second roll ofpaper or telegram blanks 36 for carbon copies is mounted on the tie rod42 and has its loose or free end trained down between the end of thepaper or blanks from the roll 25 and the laten 33 thence up around theplaten 33 to t e reel C to which it is secured. V

The carbon sheet 449 secured to the retraction roller 48 extends forwardbetween the paper 35 and 36 and is ulled forward against the springtension of the roller 48 as the platen is rotated by the operator toadvance the paper being written upon, the friction exerted by thetypewriter mechanism against the pa ers being written upon beingsufiicient for t is pur so. When the operator has finished writing hewill release the friction mechanism of the typewriter and the roller 48will retract the carbon paper to zero or normal position.

Various other modifications and designs will readily suggest themselvesto those skilled in theart and therefore I do not wish to be limited tothe exact construction shown and described.

I claim In a typewriter attachment the combinat on of a supporting framehaving a pair of side members spaced apart, means on said attachment forsupporting rolls of paper, a transversely extending reel mounted on stubshafts journaled in suitable bearings secured to said side members, saidreel comprising a.transversely extending roller member, a

plurality of radially extending spring fingers mounted on said rollermember, and an outer surrounding cylindrical core member supportedonsaid spring finger members and adapted to receive paper to be reeledthereon.

In testimony whereof I have hereunto set my hand.

HAYES C. STEVENS.

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